d8a8dcde7a9f7b1958f160d9e04737739c9118ea20cbe5405a9f0c154435d86f

General

Target

d8a8dcde7a9f7b1958f160d9e04737739c9118ea20cbe5405a9f0c154435d86f.dll
Size

152KB
MD5

8f1d1afaf3d0b84620ac4ee82868b111
SHA1

2cf0afd93cf2806b0e4dbc0a8820508f1adb5a67
SHA256

d8a8dcde7a9f7b1958f160d9e04737739c9118ea20cbe5405a9f0c154435d86f
SHA512

2adfa6ef82646fdcce5313a954975cfc44b96358ad32af3cd118af35d0cf8c6bb8c73022f7221150312446e02d1abe4823ac425114b673e8d7f59808d7ba8055
SSDEEP

3072:+Xyxum6XqmeJtY/VSSmZ1QAT25omGiDTKWb95C51jnWb1VOZ47vm2E+RLxwJlu:+ixr5bVSmfQg25zvDTfb95ajs1VO670u

Score

9^/10

Malware Config

Signatures

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/2056-4-0x0000000010000000-0x0000000010059000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2056-6-0x0000000010000000-0x0000000010059000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Blocklisted process makes network request 10 IoCs

flow	pid	Process
3	2056	rundll32.exe
5	2056	rundll32.exe
8	2056	rundll32.exe
9	2056	rundll32.exe
10	2056	rundll32.exe
13	2056	rundll32.exe
14	2056	rundll32.exe
15	2056	rundll32.exe
17	2056	rundll32.exe
18	2056	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\sDisk = "C:\\Windows\\SysWOW64\\rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\d8a8dcde7a9f7b1958f160d9e04737739c9118ea20cbe5405a9f0c154435d86f.dll\",SSL_clear"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2056	rundll32.exe
2056	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28
PID 2004 wrote to memory of 2056	2004	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d8a8dcde7a9f7b1958f160d9e04737739c9118ea20cbe5405a9f0c154435d86f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d8a8dcde7a9f7b1958f160d9e04737739c9118ea20cbe5405a9f0c154435d86f.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2056

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2056-0-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download
memory/2056-2-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download
memory/2056-1-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download
memory/2056-4-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download
memory/2056-6-0x0000000010000000-0x0000000010059000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads